Finding the Fourth Proportional to 135,000.10, 202,451.55 and 68,418.10
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Solution
The fourth proportional to 135,000.10, 202,451.55 and 68,418.10 is: 102,602.52
Step by Step Solution
- Step 1: Write the proportion equation
135,000.10 : 202,451.55 = 68,418.10 : x - Step 2: Convert to fraction form
135,000.10/202,451.55 = 68,418.10/x - Step 3: Cross multiply
135,000.10x = 202,451.55 × 68,418.10 - Step 4: Simplify right side
135,000.10x = 13,851,350,393.06 - Step 5: Solve for x
x = 13,851,350,393.06/135,000.10 - Step 6: Final answer
x = 102,602.52
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.